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JohnP_WDG_36158's avatar
JohnP_WDG_36158
Icon for Altocumulus rankAltocumulus
Jul 10, 2018

Loadbalancing NPS Radius Servers - tricks?

So I have set up our NPS Servers on our F5's, set up radius monitors, but the servers show red/not responding. A bit of reading says that NPS servers don't actively listen on port 1812, but do respond to queries.

 

I can change the monitor something basic (ICMP, UDP) and it turns green, so I know the server responds from the F5.

 

I'm curious if there's something more to do, or if an iRule is needed to actively check the server/response on this?

 

irule
LTM
nps
radius
security

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  • boneyard's avatar
    boneyard
    Icon for MVP rankMVP
    Jul 14, 2018

    iRules are usually not used for health monitoring.

     

    why doesn't a regular RADIUS health monitor with correct username / password that causes an Access-Accept work? have you determined with tcpdump what response you get?